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G. W. JACKSON.

LOADING MACHINE.

APPLICATION FILED MAY 29. m5.

atented Aug. 12, M519.

5 SHEETSQSIIEEI I.

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G.W.1ACKSON.

LOADING MACHINE. Mmc/mow FILED MAY29,1916.

Patentemug, 12,1919,

5 SHEETS-SHEET 2.

G. W. ACKSON.

LOADING MACHINE.

APPLICATION FILED r11/w29` 1915.

Patented Aug, 12, m9.

5 SHEETS-SHEET-4..

et w. mcxsom. LOADING MACHINE.

APPLICATION FILED MAY 29.I96.

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Nfl

TION 0F WISCONSIN.

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GEORGE W. JACKSON, OF CHICAGO, ILLINOS, ASSIGNGR, BY MESNE AJLGNMEQTTS,l .AMERICAN POWER SHOVEL COMPANY, 0l" MLW'AUKEE, WISCISN, .il CEFURM iLOADNG-,MACI-IINE.

Application filed May 29, "i916, Serial ."Lo. M9545,

To all whom t may conce/m.'

Be itknoivn that l, Gnome lV. Jamison, a. citizen of theUnitedStates.and a resident of Chicago, in the count-y of Cook and State ofillinois.I have invented certain new and useful improvements inLoading-Machines; and I do hereby declare that the following is a full,clear, and exact description thereof,

reference being had to the accompanyingdrawings, .and to the charactersof reference marked thereon, which forni a part of this specification.

This invention relates to improvements in loading machines for loadingVor unloading loose material, such as broken stones produced by blastingin the construction of tunnels, coal, ores, and other such material, andthe invention consists in the combination and arrangement of the partsshown in the drawings and described in the specification and is pointedout in the appended claims. i

A loading machine el'nbodying` my invention embraces, in general terms.a suit-able traveling support or carriage which carries aboom thatsupports an endless series of traveling buckets` which transports thematerial to be handled from a lower level to a take-oil' belt in rearthereof at a higher level, by which belt the material is carried to asuitable place for the disposal thereof. The said boom is mounted on thecarriage so that its lower oixreceiving end 'may be horizontallyswungfrom side to side to in-v crease the arcuate area of its work, the boombeing, for this purpose, preferably supported on a turn-table mounted toturn or rotate on the traveling frame or support.

Among the objects of the invention is to provide a novel constructionand arrangement of thev supporting means for the boom and the takeoffbelt; frame so constructed and arranged as to maintain the discharge endof the'iboom'lin, snob, given relation to thev receiving end ofthetaire-o belt .or carrier and its frame as to insure proper delivery ofthe material from the discharging' buckets to the take-0E belt orcarrier Withoutl the necessity of providing special l A'ing myinvention.

Fig. 2 is a plan view thereof.

Fig. 3 is view similar to the buclet-supporting boom, at diierentposition.

-4 is a horizontal section. and plan View taken on the line i of Fig. l.

Figs. 5 and G are vertical sections taken on the lines 5-5 and 6 6,respectively'` of Fig, l. l

T he frame or Carriage l() of the machine is herein shown made ofsuitably fabricated side and end -beain members il and surmounted by a.suitably massive casting 12 which is formed with a central r .ed seat lato. constitute a support for a turntable 15, the latter hereinafterbeing more fully. described.

4Sa1d carriage l0 is herein shown as supl ported on and propelled by acaterpillar drive comprising; front and rear sprocket wheels or pulleys17, 17, respcctii'ely, aboutl which are trained endless traveling' beltsor chains 19 that carry the usual facing blocks 20 0f a caterpillardrive. The sprocket Wheels or pulleys at one side of the machine arefixed, in any suitable manner, to front and rear solid axles Q3, :24,respectively. which are rotatively mounted, at. one side of the machine,in suitable bearings 25 attached to and depending from the si de cai.`-riage frame members il; and said solid axles are rotatively mounted atthe other side of the machine in hollenT axles 26, which latter are inturn rotativeiy mounted in bearings 27 carried by the frame, and towhich hollow axles the pulleys or sprockets 17 at the latter side of themachine attached (Figs. 5 and 6).

The solid and hollow axles 2e, 26,

lirouiq'li meflium of dem: serine/Stiens 29g ors 30, 30 carried by iSeid. mogo're may be steam or air motors. v i whim is sims gesiie toalie mile @ermee ed hrougli one wfg-ille? drives Y ith ehe rear solid ymot-or whieli is geared. o the L hel J axle is likewise coimeeiefl toi.' hollow :une through izlie other drive., su that lie motors Lge orembed rive the machine for- ;Y er reerwei'ill' in straight lines, or Siemii-shine frein one .side to lie eerfing im l'ollersjl, mounteil I ete36, are adapted to lower laps of the emerfweeu me pulleys or sprockiiein effective 'me-tion re J lie suppoing; surfz t45ol l5- is 'providedwith forugx-ry d weered arms ES, 38, upon the ou er or orvmid e'mls ofwhich is supported ii ouelet carrying boom 40. Said boom com- 'm generaleriiie., sie channeled .members Q, l on T23/lie immriilly directed i o1?which travel endless roller beerii libs Z wliieli e` ny :buekes 433.Seid Quel uns *elek up the umterinl ai', *die lower booii'v and carryil@ {mwa-Telly zwom zuid {liselierge Suid inzitraveling l'melzes mayiii-oleI form of moor air or fel'emn motor, e suitable reducing fmlfe i6that ciurries pulleys for @Elie Mural, effl of the boom en the 'umsoumet. 'with the n other obstruefiou. mi for so mounting Y armsconsiste il emile ef saifl arms yolres [iQ into which slml, 51 lm efeidsdie boom and, is eeled )le manner, as 'by maiis The said Sheff@ 5l flbetween ends :wil is suppored wl ii f. in @elle 'im B ei-Weeii havesuiizible v lsv/'ill thus lee seen the@ lie boom is yielably supgiorfedoir seid arms 88 and that the springs, or equivalent cushioning meanswhich may be employed, serve te absorb shocks and jars in lie marmerstated, and `also relieve the buckets of strains which might encl tobrezil-i the same or lo "unduly strain elle bucket-carrying belt.

The boom is urlher supported on the turn-table by means of linkconnections 57 which are pivoed et their lower ends to lugs 58 extendingupwerclly from the turntable. membere 58 'which are inter-:Lully'screwtlireadecl to receive screwslirfuled members 60, which letter aresuitaol *r7.vm9gini'feol in bearings 6l carried in any suitable rheunerhy the side Walls i the boom. To the" upper ends of saidsei'eW-lg-hreadenl members are ixed beveled. @unions 62 which mesh withother beveled `pinions 63 carried by a shaft S that extends transverselythrough the boom ,and is roatively mounted in die side Walls thereof.@ne end of said Slm'; (Sil carries a hand Wheel by which the shaft maybe rotated to 1urn the screwtlireadefl members ino and out of lthesleeve portions of the lilik connections and thereby elongate or sliereithem tn efleet; veieal. adj ustmen of lille boom with respect to theturn-table.

70 designates endless luke-oil" bell, which is located in rear of theboom. S/ziil loeI is trained ebeu; rollers or pulleys 7E., il that arerotatively n'iountefl el; from; and rear enflsoi' :i suitable carrierframe The said Carrier frame is pivotally conneeefl to *che turn-tableby means of a trunbrrlet 77 which is carried by alle rear end of? thecarriage l0 and extends upwardly and rearwardly therefrom and is formedWili e bearingr .seat 76 on which alle Carrier frame rests. .lt Will benoted that the takeo belt carrier frame is supported from the carriageby means located below the level of the rear end of the bucket carryingboom, so that the device is self conta-ined, in that thel carrier 'frameis siirportedf-on the cairriagge und Seid carrier frame suppori; doesnel; edd to the oser-:ill height of the machine. The machine is,therefore, compa-e?, iii height The Lelie-*olli belt, is driven by anysuitable forni of moor Z8 which is Siipporecl on 'the carrier frame andis operativelyoen- Heated to the slm'f. 79 of lie rearmost drum idirectithe material to the take-off belt.

the turn-table and to avoid amaai? taire-od belt frame is enlarged asindicated at 83 in Figs. and 3, and the side and end walls Sl, 85,respectivelyfare inclined downwardly toward the take-oli' belt 70 so asto prevent the material being handled from falling; oil' of said belt aswill be apparent from an inspection ot' Figs. 3 and 5.

The turn-table l5 is preferably supported on the turnetable seat lathrough themediuin of an annular series of anti-friction bearings 87{higs l, 1 and 5)', said seri-es being disposed concentrically withrespect to the artis ot rotation oir' the turn-table. Preferably theturn-table is provided at its turning anis with a hing bolt 88 whichextends downwardly therefrom into a suitable bearing 89 in the castmetal portion of the carriage fra-me, and which serves to steady thesame being lifted. v

ln accordance with the main or principal feature ot' my inyention thetake-oil' belt carrier frame is pivoted to the turn-table ec centricallywith respect to the turning axis of said turn-table, will be clear froman inspection of iiigs. l, 2 and 3. The amount of ewentricity betweenthe pivotal axis of the taire-oli belt frame and the turning axis of theplatform is such as to cause the pivotal axis of the said carrier totravel through a short arc about the turning'y axis ot' the turn-tablewhen the table is turned to swing the boom from side to side, so as tocause the receiving end ot' the carrier frame to follow the dischargingpositions of the buckets in all the diiierent ranges of adjustment ofthe boom, as will be apparent from a comparison of Figs. 2 and 3. lllheconnection described is such as to necessitate but small lateraldeviation of the rear end of the carrier frame. By reason of the eccentiic coupling' of the take-off belt carrier frame with respect to theturningV axis of the turn-table, the receiving; end of said take-oftbelt carrier frame follows the discharging positions of the buckets insuch manner that the take-off belt will always bein position to receivethe contents of the buckets without the necessity of supplying someseparate or special directing means to The said pivot 74: for the takeo' belt carrier frame is so disposed with respect to the turning axis ofthe turn table and with respect to the longitudinal planes of the boomand frame as to be in rear of said turning'l hole. to be made or aminimum width so to 'nass reeli through tun- 'ducing geur mechanism 98.

nels, mines and like restricted places where it is best adapted for use.

Any suitable means may be employed for rot-ating the turn-table on itsaxis to swing the boom from side to side. As herein shown,the'turn-table is provided on its under side with an arcuate series ofteeth 92 which are engaged by a pinion J3 that is carried by a shaft 9iAthat is rotativciy mounted in suitable bearings 95 in the niachincframe. Said shaft 94: is adapted to be rotated by means of a suitablemotor 3io which is supported on an extension bracket 97 of the mainframe, and is connected to the shaft by any suitable torni oi speed re-'l`he arcuate length of said curved series oi teeth 9;). is such as toenable the boom to be swung),Y approximately ninety degrees from eachside of its centralfposition, so that, when using the machine. una meansto ren'iove the broken rock from a tunnel breast, said machine may serveav lwidth of tunnel breast. without changingr the position of the maincarriage, of a width or diameter approximately twice the length. of theboom.

The operation of "the machine will be apparent from the foregoing;1description. lt may be stated, `by i 'ay of recapitulation, that themachine is advanced toward the work to bring the buckets at the-lowerend ci' the boom into position to lii't the material through the lmediumof its propelling' motors 30, and, by reason of the fact that one motoris operatively connected to the tubular axles at one side of the machineand that the other motor is connected to the solid axles at the otherside of the machine, said machine may be propelled either forwardly orrearwardly by operatingn the motors at approximately equal speeds in thesame direction, or may be steered from a' direct lin'i by operating oneoi' said motors at higher speed than the other, or by operating them inopposite directions. The boom is swung from'side to side through asuitable control connected to the motor 9b which acts through the shaft94 and pinion 95 and the rack or teeth 92 on the turn-table to rotatethe latter about its turning axis and thereby to swing` the boom fromside to side from one limit of its range of movement to the other. vThereceiving` end of the boom is,v raised and lowered through the operationof the hand wheel which acts, through the sha-ft 64., and the associatedgears, to elongateor shorten the supporting links 58. v

It will be understood that the means of maintaininp, the properreceivingY relation ol the take-od belt carrier frame to the buckets orother material-elevating means may be eiiected 'by' other mechanism thanlthat spo hrough seid earning axis when the boom :.m. flume we in theirmid-positions.

27. je landing machine comprising 2L Car- '1';|, u Lmn-mbe pvoiiedaxially thereof: :md suppmed. on. the Carrier, a boom Suppol-md on saidhlm-table and extending forvm'dy therefrom und tenmilmting at its remend fomzudly of the. real' side of the 'imm-table traveling pick-updevices carried by Said. bue-m, take-off Camiel fran'xe pvoteiy moux'ed@n said turn-table above and forwardly of the, Year side of thetum-table with pvot eccentric to that of the tur'rr ta'be and 'oywm'dend beneaththe .remand of the boom, s@ Camiel supported im S21-idcarrier frame, :m means extending rearwardiy frein the ezsrage im'Suppmfb ing therem' end of 'he Meier while pelmng free atea swinging m0thereof from one side t@ ehe @thee 'ehe machine.

1n testimony whereof, have heeunm set my hand ai; hcago, nos, 20 dayMay, 19H).

GZRGE "3A/

